148 filings
DEFA14A
BIIB
Biogen Inc
26 Apr 24
Additional proxy soliciting materials
5:03pm
DEF 14A
BIIB
Biogen Inc
Definitive proxy
26 Apr 24
5:01pm
PRE 14A
BIIB
Biogen Inc
Preliminary proxy
12 Apr 24
5:01pm
DEFA14A
BIIB
Biogen Inc
31 Jul 23
Additional proxy soliciting materials
7:02am
DEFA14A
BIIB
Biogen Inc
28 Jul 23
Additional proxy soliciting materials
7:13am
DEFA14A
kdx3xxxt
13 Jun 23
Additional proxy soliciting materials
7:28am
DEFR14A
mndoi8rh1zw03
13 Jun 23
Revised proxy
7:25am
DEFA14A
eyb1h ro8omm
12 Jun 23
Additional proxy soliciting materials
5:18pm
DEFA14A
eer3trj
28 Apr 23
Additional proxy soliciting materials
5:23pm
DEFA14A
103ho
7 Jun 22
Additional proxy soliciting materials
4:37pm
DEFA14A
5v9jww2 l1zh
29 Apr 22
Additional proxy soliciting materials
7:32am
PX14A6G
q3pu5dnb
28 May 21
Letter to shareholders
11:44am
DEFA14A
pa21lhasdwyipv
23 Apr 21
Additional proxy soliciting materials
4:16pm
DEFA14A
90c3wde3
9 Apr 21
Additional proxy soliciting materials
4:35pm
DEFA14A
dkp9x8
20 Apr 20
Additional proxy soliciting materials
4:23pm